Canonical Wnt signaling inhibits osteoclastogenesis independent of osteoprotegerin.
Canonical Wnt signaling inhibits osteoclastogenesis independent of osteoprotegerin.
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DOI:
10.1083/jcb.201207142
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发表时间:
2013-02-18
期刊:
影响因子:
--
通讯作者:
Schinke T
中科院分区:
文献类型:
--
作者:
Albers J;Keller J;Baranowsky A;Beil FT;Catala-Lehnen P;Schulze J;Amling M;Schinke T
Canonical Wnt signaling through Fzd8 and β-catenin negatively regulates osteoclast differentiation and reduces bone resorption independent of osteoprotegerin. Although Wnt signaling is considered a key regulatory pathway for bone formation, inactivation of β-catenin in osteoblasts does not affect their activity but rather causes increased osteoclastogenesis due to insufficient production of osteoprotegerin (Opg). By monitoring the expression pattern of all known genes encoding Wnt receptors in mouse tissues and bone cells we identified Frizzled 8 (Fzd8) as a candidate regulator of bone remodeling. Fzd8-deficient mice displayed osteopenia with normal bone formation and increased osteoclastogenesis, but this phenotype was not associated with impaired Wnt signaling or Opg production by osteoblasts. The deduced direct negative influence of canonical Wnt signaling on osteoclastogenesis was confirmed in vitro and through the generation of mice lacking β-catenin in the osteoclast lineage. Here, we observed increased bone resorption despite normal Opg production and a resistance to the anti-osteoclastogenic effect of Wnt3a. These results demonstrate that Fzd8 and β-catenin negatively regulate osteoclast differentiation independent of osteoblasts and that canonical Wnt signaling controls bone resorption by two different mechanisms.
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DOI:
10.4049/jimmunol.1102836
发表时间:
2012-03-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Otero K;Shinohara M;Zhao H;Cella M;Gilfillan S;Colucci A;Faccio R;Ross FP;Teitelbaum SL;Takayanagi H;Colonna M
通讯作者:
Colonna M
DOI:
10.1083/jcb.201008012
发表时间:
2011-03-21
期刊:
The Journal of cell biology
影响因子:
--
作者:
Albers J;Schulze J;Beil FT;Gebauer M;Baranowsky A;Keller J;Marshall RP;Wintges K;Friedrich FW;Priemel M;Schilling AF;Rueger JM;Cornils K;Fehse B;Streichert T;Sauter G;Jakob F;Insogna KL;Pober B;Knobeloch KP;Francke U;Amling M;Schinke T
通讯作者:
Schinke T
影响因子:
3
作者:
Clausen, BE;Burkhardt, C;Förster, I
通讯作者:
Förster, I
影响因子:
64.5
作者:
Gong, YQ;Slee, RB;Warman, ML
通讯作者:
Warman, ML
影响因子:
82.9
作者:
通讯作者:
--